EP1720162A3 - Disk drive apparatus and spherical aberration correcting method - Google Patents

Disk drive apparatus and spherical aberration correcting method Download PDF

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Publication number
EP1720162A3
EP1720162A3 EP06005909A EP06005909A EP1720162A3 EP 1720162 A3 EP1720162 A3 EP 1720162A3 EP 06005909 A EP06005909 A EP 06005909A EP 06005909 A EP06005909 A EP 06005909A EP 1720162 A3 EP1720162 A3 EP 1720162A3
Authority
EP
European Patent Office
Prior art keywords
spherical aberration
optical disk
recording layers
laser beam
objective lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06005909A
Other languages
German (de)
French (fr)
Other versions
EP1720162A2 (en
Inventor
Junichi Sony Corporation Kanenaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP1720162A2 publication Critical patent/EP1720162A2/en
Publication of EP1720162A3 publication Critical patent/EP1720162A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers

Abstract

A disk drive apparatus includes: an optical pickup (22) irradiating a laser beam onto an optical disk (10) having one or more recording layers through an objective lens and receiving the laser beam reflected from the optical disk; a driving unit moving the objective lens in an optical axial direction of the laser beam to the optical disk in accordance with a driving signal; an interlayer distance measuring unit measuring interlayer distances of a plurality of recording layers of the optical disk; and a spherical aberration correcting unit (50,51) obtaining a spherical aberration correction value for correcting a spherical aberration due to the objective lens to one of the recording layers of the optical disk. A spherical aberration correction value to another one of the recording layers is obtained on the basis of the measured interlayer distances and the obtained spherical aberration correction value to the one recording layer.
EP06005909A 2005-04-04 2006-03-22 Disk drive apparatus and spherical aberration correcting method Withdrawn EP1720162A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005107176A JP2006286132A (en) 2005-04-04 2005-04-04 Disk drive unit and spherical aberration compensation method

Publications (2)

Publication Number Publication Date
EP1720162A2 EP1720162A2 (en) 2006-11-08
EP1720162A3 true EP1720162A3 (en) 2007-08-08

Family

ID=36992566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06005909A Withdrawn EP1720162A3 (en) 2005-04-04 2006-03-22 Disk drive apparatus and spherical aberration correcting method

Country Status (6)

Country Link
US (1) US7551526B2 (en)
EP (1) EP1720162A3 (en)
JP (1) JP2006286132A (en)
KR (1) KR20060106882A (en)
CN (1) CN100412965C (en)
TW (1) TW200703301A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020354A1 (en) * 2006-08-15 2008-02-21 Koninklijke Philips Electronics N.V. Spherical aberration compensation adjustment
JP4724624B2 (en) * 2006-08-29 2011-07-13 パイオニア株式会社 Optical disk device
US7933182B2 (en) * 2006-12-13 2011-04-26 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus that sets a movable range of an objective lens based on the type of recording medium
JP2008159137A (en) * 2006-12-22 2008-07-10 Tdk Corp Optical recording and reproducing method, optical recording and reproducing device, optical recording medium
KR100882748B1 (en) 2007-09-10 2009-02-09 도시바삼성스토리지테크놀러지코리아 주식회사 Focus control method and optical disc drive using the same
JP2009158067A (en) * 2007-12-27 2009-07-16 Toshiba Corp Spherical aberration correction apparatus and spherical aberration correction method
TWI349934B (en) 2008-01-15 2011-10-01 Mediatek Inc Method and apparatus for deciding spherical aberration compensation value of optical storage medium
JP5463118B2 (en) 2009-10-23 2014-04-09 日立コンシューマエレクトロニクス株式会社 Optical disk device
JP2011141915A (en) * 2010-01-06 2011-07-21 Hitachi Consumer Electronics Co Ltd Optical disc apparatus
JP2011154750A (en) * 2010-01-27 2011-08-11 Hitachi-Lg Data Storage Inc Optical disc apparatus, and driving method of optical disc apparatus
JP2011248978A (en) * 2010-05-31 2011-12-08 Hitachi-Lg Data Storage Inc Optical disk device and optical disk discriminating method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020195540A1 (en) * 2001-06-22 2002-12-26 Pioneer Corporation Focusing control apparatus and method for multi-layer optical recording medium

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7286153B1 (en) * 1991-10-11 2007-10-23 Hitachi, Ltd. Three-dimensional recording and reproducing apparatus
US5625609A (en) * 1995-03-13 1997-04-29 International Business Machines Corporation Multiple data layer optical disk drive system with fixed aberration correction and optimum interlayer spacing
TW564404B (en) * 2000-09-06 2003-12-01 Matsushita Electric Ind Co Ltd Optical disk unit and information recording and reproducing method
JP4257049B2 (en) * 2001-07-06 2009-04-22 パイオニア株式会社 Multilayer disc recording / reproducing apparatus and focus jump method
JP2003091851A (en) * 2001-09-20 2003-03-28 Tdk Corp Optical recording and reproducing device
JP2004039125A (en) * 2002-07-04 2004-02-05 Sony Corp Optical recording/reproducing device and method for controlling focus
JP3835402B2 (en) * 2002-11-19 2006-10-18 株式会社日立製作所 Information reproducing method and information reproducing apparatus for multilayer optical disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020195540A1 (en) * 2001-06-22 2002-12-26 Pioneer Corporation Focusing control apparatus and method for multi-layer optical recording medium

Also Published As

Publication number Publication date
CN1848259A (en) 2006-10-18
EP1720162A2 (en) 2006-11-08
TWI359419B (en) 2012-03-01
CN100412965C (en) 2008-08-20
US7551526B2 (en) 2009-06-23
KR20060106882A (en) 2006-10-12
US20060221782A1 (en) 2006-10-05
JP2006286132A (en) 2006-10-19
TW200703301A (en) 2007-01-16

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